Argonne National Laboratory

Experimental Physics and
Industrial Control System

1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  <2017 Index 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  <2017
<== Date ==> <== Thread ==>

Subject: Help regarding siemens S7 200 smart communcation
From: Arnab Dasgupta <arnabdasg@ipr.res.in>
To: tech-talk@aps.anl.gov
Date: Wed, 18 Jan 2017 12:09:04 +0530 (IST)
Hi,

I am trying to communicate a S7200 Smart PLC ( CPU  ST-40) with EPICS using the modbus RTU protocol on linux-x86_64, but unable to do that The error is:
.
>>drvModbusAsyn::doModbusIO port A0_Out_Bits error calling writeRead, error=, nwrite=6/6, nread=0



Do I need a Serial communication port Driver for the PLC to be installed first ? I doubt it is possible for this plc. I have tried communication using Modbus Poll but it shows a Timeout Error. Kindly let me know if its possible?

-regards
 Arnab






Navigate by Date:
Prev: Re: Knowing if a server application is running Ralph Lange
Next: Looking for someone to help building the control system of XAFS/XRF beamline at SESAME Mark Clift
Index: 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  <2017
Navigate by Thread:
Prev: Re: Knowing if a server application is running Bo Jakobsen
Next: problem connecting serial device with moxa 5150A Sunny Badkul
Index: 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  <2017
ANJ, 14 Feb 2017 Valid HTML 4.01! · Home · News · About · Base · Modules · Extensions · Distributions · Download ·
· EPICS V4 · IRMIS · Talk · Bugs · Documents · Links · Licensing ·